mirror of
https://github.com/dexoron/dcr.git
synced 2026-10-21 10:48:30 +00:00
Dexoron
b5bbdb929b
- Updated all relevant source files to include the new license header. - Changed the default license in the configuration from MIT to GPL-3.0-or-later.
72 lines
2.1 KiB
Rust
72 lines
2.1 KiB
Rust
// DCR — Cargo-like C/C++ project manager.
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//
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// Copyright (C) 2026 Dexoron (Bezotechestvo Vladimir) <main@dexoron.su>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use std::path::Path;
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#[allow(dead_code)]
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pub fn fetch_git_dep(
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url: &str,
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target_dir: &Path,
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branch: Option<&str>,
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tag: Option<&str>,
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rev: Option<&str>,
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) -> Result<(), String> {
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if target_dir.exists() {
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return Ok(());
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}
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let mut builder = git2::build::RepoBuilder::new();
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if let Some(b) = branch {
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builder.branch(b);
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}
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let repo = builder
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.clone(url, target_dir)
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.map_err(|e| format!("failed to clone {}: {}", url, e))?;
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if let Some(t) = tag {
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checkout_ref(&repo, &format!("refs/tags/{}", t))?;
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} else if let Some(r) = rev {
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checkout_ref(&repo, r)?;
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}
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Ok(())
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}
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#[allow(dead_code)]
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fn checkout_ref(repo: &git2::Repository, reference_str: &str) -> Result<(), String> {
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let (object, reference) = repo
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.revparse_ext(reference_str)
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.map_err(|e| format!("failed to find ref {}: {}", reference_str, e))?;
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repo.checkout_tree(&object, None).map_err(|e| {
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let ref_name = reference.as_ref().and_then(|r| r.name()).unwrap_or("HEAD");
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format!("failed to checkout {}: {}", ref_name, e)
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})?;
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match reference {
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Some(gref) => {
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let ref_name = gref.name().unwrap_or("HEAD");
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repo.set_head(ref_name)
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}
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None => repo.set_head_detached(object.id()),
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}
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.map_err(|e| format!("failed to set HEAD: {}", e))?;
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Ok(())
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}
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